System and method for distributed caching of objects using a publish and subscribe paradigm
US6567893B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 17, 2000 |
| Grant date | May 20, 2003 |
| Priority date | — |
| Expiry date | Nov 17, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/9574
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system and method for caching objects using a cost-based publish and subscribe paradigm, wherein a server computing node determines whether a given cache node should receive a cache update based on, e.g., the cost of sending the update. In one aspect, a method for maintaining objects in a cache comprises the steps of issuing a subscription for an object, maintaining a metric for the object; and determining, based on the metric, whether a cache is to receive an update message associated with the object. The metric is preferably correlated with one or more factors such as an importance factor of maintaining the cached copy of the object current, the cost of the sending the update message, and/or the estimated lifetime of the object.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.